6-9-22 MSDOS – CLI MSWIN (GUI) UNIX – first cooperate Operating System o Powerfull operating system o Command line interface (CLI) - Linux (CLI & GUI) o Open source OS o Unix’s clone - Unix like family o AIX – IBM o HP.UX – HP o Text User Interface (TUI) - .exe – windows - .rpm – linux – Red hat package management - DBN – Kali linux, Ubuntu - Red hat – Rhel, CentOS, Rocky Linux - Types of OS – 3: o Single User – Single Tasking § MSDOS o Single User – Multi Tasking § MSWIN o Multiuser – Multi Tasking § Unix, linux - RHEL – 7.0, 8.0 o Bourne Again Shell (BASH) o Shell – SH, KSH, CSH o Kernel – Core Os § Mono – linux – uname -a (or) – r § Micro – Windows – Systeminfo o Kernel – Device info § Multitasking § File system info 7-9-22 - 24-8-22 - DvD, Pen Dri